81434820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{307}}^1\times {\mathrm{4421}}^1$

素因数の和:4740

約数の個数: 48

約数和(自身を含む): 228811968

約数和(自身を除く): 147377148

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 307, 614, 921, 1228, 1535, 1842, 3070, 3684, 4421, 4605, 6140, 8842, 9210, 13263, 17684, 18420, 22105, 26526, 44210, 53052, 66315, 88420, 132630, 265260, 1357247, 2714494, 4071741, 5428988, 6786235, 8143482, 13572470, 16286964, 20358705, 27144940, 40717410, 81434820]

約数ペア:

[(1, 81434820), (2, 40717410), (3, 27144940), (4, 20358705), (5, 16286964), (6, 13572470), (10, 8143482), (12, 6786235), (15, 5428988), (20, 4071741), (30, 2714494), (60, 1357247), (307, 265260), (614, 132630), (921, 88420), (1228, 66315), (1535, 53052), (1842, 44210), (3070, 26526), (3684, 22105), (4421, 18420), (4605, 17684), (6140, 13263), (8842, 9210)]